Detailed Notes: The Fit Kit Uses Adapter To Be Mounted To Vehicle As In Fit Kit Instruction~ To Max. Usable Space On Top Bar Thule Offers Xadapters Working w / Bar TTrack~ XADAPT11-834 Hullaport And 835PRO Hullaport Pro~ XADAPT12 - 811 SUP Shuttle And 819 Portage~ Due To Rack Placement And Configurations Some Of Our Larger Cargo Carriers~ May Hinder The Ability To Open The Rear Hatch Completely. Please Refer To~ Box Mounting Dimensions Chart In Tech Info Section Of Guide For Information~ Bracket For Fit Kit Attaches w / Screws Behind Weather Strip On Door Frame~ If There Are No Screws Behind Weather Strip Fit Kit Cannot Be Attached~ In This Situation There Is No Top Of Vehicle Fit For This Vehicle.